EP2237489B1 - Content recording method for supporting search based on scenes in a distributed multimedia system - Google Patents

Content recording method for supporting search based on scenes in a distributed multimedia system Download PDF

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Publication number
EP2237489B1
EP2237489B1 EP09702257.8A EP09702257A EP2237489B1 EP 2237489 B1 EP2237489 B1 EP 2237489B1 EP 09702257 A EP09702257 A EP 09702257A EP 2237489 B1 EP2237489 B1 EP 2237489B1
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EP
European Patent Office
Prior art keywords
scenes
scene
information
rendering
control point
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP09702257.8A
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German (de)
French (fr)
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EP2237489A2 (en
EP2237489A4 (en
Inventor
Won-Seok Kwon
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Samsung Electronics Co Ltd
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Samsung Electronics Co Ltd
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Filing date
Publication date
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Publication of EP2237489A2 publication Critical patent/EP2237489A2/en
Publication of EP2237489A4 publication Critical patent/EP2237489A4/en
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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/162—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing
    • H04N7/163—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing by receiver means only
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
    • G06Q50/10—Services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47—End-user applications
    • H04N21/472—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
    • H04N21/4728—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content for selecting a Region Of Interest [ROI], e.g. for requesting a higher resolution version of a selected region
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
    • H04N21/84—Generation or processing of descriptive data, e.g. content descriptors

Definitions

  • One or more embodiments of the present invention relate to universal plug and play (UPnP), and more particularly, to a method of supporting scene-based seeking while reproducing content in a distributed multimedia system such as a UPnP audio/video (AV) multimedia system.
  • UFP universal plug and play
  • AV audio/video
  • Universal plug and play is a set of computer network protocols to allow individual devices or home appliances, such as a personal computer (PC) and a printer, to connect and communicate with one another in a home environment.
  • UPnP uses, but is not limited to, Internet protocols, such as a transfer control protocol/Internet protocol (TCP/IP) and a dynamic host configuration protocol (DHCP), in order to seamlessly connect networked devices having unique Internet protocol (IP) addresses, and an extensible markup language (XML) in order to describe the networked devices.
  • TCP/IP transfer control protocol/Internet protocol
  • DHCP dynamic host configuration protocol
  • IP Internet protocol
  • XML extensible markup language
  • PnP Plug and play
  • a scene refers to chapters in a digital versatile disk (DVD) system.
  • DVD digital versatile disk
  • UPnP audio/video does not provide any mechanism that shows scenes of video content.
  • US-2007/0050837-A1 discloses a method, apparatus and system to provide a user with rich digital bookmarks to navigate digital content.
  • the bookmarks may be generated and provided to a user for use to perform sophisticated trick mode actions in a user friendly manner.
  • One or more embodiments of the present invention include a method of supporting scene-based seeking while reproducing content in a distributed multimedia system such as a universal plug and play (UPnP) audio/video (AV) multimedia system.
  • a distributed multimedia system such as a universal plug and play (UPnP) audio/video (AV) multimedia system.
  • UFP universal plug and play
  • AV audio/video
  • One or more embodiments of the present invention include a computer-readable recording medium having embodied thereon a computer program for executing the method.
  • a distributed multimedia system such as a UPnP audio/video (AV) multimedia system.
  • AV UPnP audio/video
  • a method, in a universal plug and play, UPnP, control point (10), of reproducing a plurality of scenes comprising: receiving information about the plurality of scenes from a media server; transmitting a query for information about the number and positions of supported rendering surfaces to a media renderer (30), the query including the information about the plurality of scenes, and acquiring the information; binding a rendering surface to a rendering instance with respect to each scene to be displayed; transmitting the rendering instance corresponding to the scene to be displayed to the media render (30); and selecting one of the plurality of scenes.
  • the selecting of the one of the plurality of scenes may comprise: receiving information about a scene to be selected by a user; and moving a focus of a current rendering surface so as to select a rendering surface corresponding to the scene to be selected by the user.
  • the information about the plurality of scenes may be scene metadata, wherein the method further comprises calling an action so as for the media renderer to display all selectable scenes.
  • a computer-readable recording medium having embodied thereon a computer program for executing the above method.
  • FIG. 1 is a flowchart illustrating a method of reproducing a plurality of scenes, according to an embodiment of the present invention.
  • a universal plug and play (UPnP) control point receives information about a plurality of scenes from a media server.
  • the UPnP control point transmits the received information about the plurality of scenes to a media renderer, and controls the media renderer to display the plurality of scenes.
  • the UPnP control point selects one of the plurality of scenes.
  • FIG. 1 is a flowchart illustrating a method of reproducing a plurality of scenes, according to an embodiment of the present invention.
  • a universal plug and play (UPnP) control point receives information about a plurality of scenes from a media server.
  • the UPnP control point transmits the received information about the plurality of scenes to a media renderer, and controls the media renderer to display the plurality of scenes.
  • the UPnP control point selects one of the plurality of scenes.
  • FIG. 2 is a flowchart illustrating a method of reproducing a plurality of scenes, according to another embodiment of the present invention.
  • a picture-in-picture UPnP application program interface is used to provide a function of scene-based seeking.
  • a control point 10 calls a Browse() action to browse the native hierarchy of the content directory objects exposed by the content directory service of a media server 30.
  • control point 10 calls a SetAVTransportURI() action to give a media renderer 30 the URI (Uniform Resource Identifier) information of a content resource.
  • URI Uniform Resource Identifier
  • control point 10 calls a Play() action to play the content.
  • the content from the beginning is transferred from media server to media renderer by using out of band protocol such as RTP (Real-time Transport Protocol), HTTP (HyperText Transfer Protocol), etc.
  • RTP Real-time Transport Protocol
  • HTTP HyperText Transfer Protocol
  • control point 10 calls a GetRenderingSurfacelnfo() action to determine the number and positions of rendering surfaces (another term for this is rendering windows) that can be supported.
  • the control point 10 calls a PrepareForConnection() action to bind a rendering surface to a rendering instance.
  • the PrepareForConnection() action returns a rendering control service identification (RCSID) that is used to separate the rendering instance from others.
  • RCSID rendering control service identification
  • a user selects a rendering surface for displaying a scene image by means of the control point 10.
  • the rendering surface is associated with the RCSID that is created in operation S260.
  • the rendering surface is now controlled by the RCSID.
  • control point 10 calls a SetAVTransportURI() action and a Play() action to display the scene image.
  • control point 10 repeats operations S260 through S280 depending on the number of scenes so that the media renderer 30 shows each of the scenes.
  • a specific scene is transferred from the media server 20 to the media renderer 30 by using out of band protocol.
  • the control point 10 calls a GetFocusedRenderingSurface() action that returns information about the scene.
  • the GetFocusedRenderingSurface() action could receive an input argument to move a focus of the rendering surface to another surface, for example, UP, DOWN, RIGHT, or LEFT.
  • control point 10 calls a Seek() action with the time position information of the selected scene.
  • content from the selected scene is transferred from the media server 20 to the media renderer 30 by using out of band protocol.
  • FIG. 3 is a flowchart illustrating a method of reproducing a plurality of scenes, according to another embodiment of the present invention.
  • FIG. 3 new UPnP APIs for scene-based seeking are illustrated.
  • control point 10 calls a Browse() action to browse the native hierarchy of the content directory objects exposed by the content directory service of the media server 30.
  • control point 10 calls a SetAVTransportURI() action and passes scene metadata as an input argument to the media renderer 30.
  • control point 10 calls a Play() action to play the content.
  • control point 10 calls a ShowScene() action to see what scenes are selectable in the video content. At this time, the user can see a number of scenes on a displayer of the media renderer 30.
  • the control point 10 invokes a SetFocusOfScene() action to acquire information about a scene.
  • An input argument of the SetFocusOfScene() action may be a direction, for example, UP, DOWN, RIGHT, or LEFT, to move between the scenes.
  • An output argument of the SetFocusOfScene() action could also be a uniform resource identifier (URI) of an image of the selected scene, by which the control point 10 can know the time position of the selected scene in a video stream.
  • URI uniform resource identifier
  • control point 10 calls a Seek() action along with information about the time position of the selected scene.
  • the present invention may be embodied as computer-readable codes on a computer-readable recording medium.
  • the computer-readable recording medium is any data storage device that can store data which can thereafter be read by a computer system. Examples of the computer-readable recording medium include read-only memories (ROMs), random-access memories (RAMs), CD-ROMs, magnetic tapes, floppy disks, and optical data storage devices.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Business, Economics & Management (AREA)
  • Databases & Information Systems (AREA)
  • Human Computer Interaction (AREA)
  • Computer Security & Cryptography (AREA)
  • Tourism & Hospitality (AREA)
  • Human Resources & Organizations (AREA)
  • Strategic Management (AREA)
  • Economics (AREA)
  • General Health & Medical Sciences (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Marketing (AREA)
  • Primary Health Care (AREA)
  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Business, Economics & Management (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Television Signal Processing For Recording (AREA)
  • Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)

Description

    Technical Field
  • One or more embodiments of the present invention relate to universal plug and play (UPnP), and more particularly, to a method of supporting scene-based seeking while reproducing content in a distributed multimedia system such as a UPnP audio/video (AV) multimedia system.
    • Background Art
  • Universal plug and play (UPnP) is a set of computer network protocols to allow individual devices or home appliances, such as a personal computer (PC) and a printer, to connect and communicate with one another in a home environment. In general, UPnP uses, but is not limited to, Internet protocols, such as a transfer control protocol/Internet protocol (TCP/IP) and a dynamic host configuration protocol (DHCP), in order to seamlessly connect networked devices having unique Internet protocol (IP) addresses, and an extensible markup language (XML) in order to describe the networked devices.
  • Plug and play (PnP) is a technology for attaching peripheral devices to a PC, whereas UPnP is derived from PnP and can be used even in a home network.
  • A scene refers to chapters in a digital versatile disk (DVD) system.
  • UPnP audio/video (AV) does not provide any mechanism that shows scenes of video content.
  • US-2007/0050837-A1 discloses a method, apparatus and system to provide a user with rich digital bookmarks to navigate digital content. The bookmarks may be generated and provided to a user for use to perform sophisticated trick mode actions in a user friendly manner.
    • Technical Solution
  • One or more embodiments of the present invention include a method of supporting scene-based seeking while reproducing content in a distributed multimedia system such as a universal plug and play (UPnP) audio/video (AV) multimedia system.
  • One or more embodiments of the present invention include a computer-readable recording medium having embodied thereon a computer program for executing the method.
  • Additional aspects and/or advantages will be set forth in part in the description which follows and, in part, will be apparent from the description, or may be learned by practice of the invention.
    • Advantageous Effects
  • According to aspects of the present invention, it is possible to support scene-based seeking while reproducing content in a distributed multimedia system such as a UPnP audio/video (AV) multimedia system.
    • Best Mode
  • According to a first aspect of the present invention there is provided a method, in a universal plug and play, UPnP, control point (10), of reproducing a plurality of scenes, the method comprising: receiving information about the plurality of scenes from a media server; transmitting a query for information about the number and positions of supported rendering surfaces to a media renderer (30), the query including the information about the plurality of scenes, and acquiring the information; binding a rendering surface to a rendering instance with respect to each scene to be displayed; transmitting the rendering instance corresponding to the scene to be displayed to the media render (30); and selecting one of the plurality of scenes.
  • The selecting of the one of the plurality of scenes may comprise: receiving information about a scene to be selected by a user; and moving a focus of a current rendering surface so as to select a rendering surface corresponding to the scene to be selected by the user.
  • The information about the plurality of scenes may be scene metadata, wherein the method further comprises calling an action so as for the media renderer to display all selectable scenes.
  • According to a second aspect of the present invention there is provided a computer-readable recording medium having embodied thereon a computer program for executing the above method.
    • Description of Drawings
  • These and/or other aspects and advantages will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
    • FIG. 1 is a flowchart illustrating a method of reproducing a plurality of scenes, according to an embodiment of the present invention;
    • FIG. 2 is a flowchart illustrating a method of reproducing a plurality of scenes, according to another embodiment of the present invention; and
    • FIG. 3 is a flowchart illustrating a method of reproducing a plurality of scenes, according to another embodiment of the present invention.
    Mode for Invention
  • Reference will now be made in detail to embodiments, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the like elements throughout. In this regard, the present invention may be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Accordingly, embodiments are merely described below, by referring to the figures, to explain aspects of the present invention.
  • FIG. 1 is a flowchart illustrating a method of reproducing a plurality of scenes, according to an embodiment of the present invention.
  • Referring to FIG. 1, in operation S100, a universal plug and play (UPnP) control point receives information about a plurality of scenes from a media server.
  • In operation S110, the UPnP control point transmits the received information about the plurality of scenes to a media renderer, and controls the media renderer to display the plurality of scenes.
  • In operation S120, the UPnP control point selects one of the plurality of scenes.
  • FIG. 1 is a flowchart illustrating a method of reproducing a plurality of scenes, according to an embodiment of the present invention.
  • Referring to FIG. 1, in operation S100, a universal plug and play (UPnP) control point receives information about a plurality of scenes from a media server.
  • In operation S110, the UPnP control point transmits the received information about the plurality of scenes to a media renderer, and controls the media renderer to display the plurality of scenes.
  • In operation S120, the UPnP control point selects one of the plurality of scenes.
  • FIG. 2 is a flowchart illustrating a method of reproducing a plurality of scenes, according to another embodiment of the present invention.
  • In FIG. 2, a picture-in-picture UPnP application program interface (API) is used to provide a function of scene-based seeking.
  • In operation S210, a control point 10 calls a Browse() action to browse the native hierarchy of the content directory objects exposed by the content directory service of a media server 30.
  • In operation S220, the control point 10 calls a SetAVTransportURI() action to give a media renderer 30 the URI (Uniform Resource Identifier) information of a content resource.
  • In operation S230, the control point 10 calls a Play() action to play the content.
  • In operation S240, the content from the beginning is transferred from media server to media renderer by using out of band protocol such as RTP (Real-time Transport Protocol), HTTP (HyperText Transfer Protocol), etc.
  • In operation S250, the control point 10 calls a GetRenderingSurfacelnfo() action to determine the number and positions of rendering surfaces (another term for this is rendering windows) that can be supported.
  • In operation S260, the control point 10 calls a PrepareForConnection() action to bind a rendering surface to a rendering instance. The PrepareForConnection() action returns a rendering control service identification (RCSID) that is used to separate the rendering instance from others.
  • In operation S270, a user selects a rendering surface for displaying a scene image by means of the control point 10. At this time, the rendering surface is associated with the RCSID that is created in operation S260. The rendering surface is now controlled by the RCSID.
  • In operations S280 and S290, the control point 10 calls a SetAVTransportURI() action and a Play() action to display the scene image.
  • In operation 48, the control point 10 repeats operations S260 through S280 depending on the number of scenes so that the media renderer 30 shows each of the scenes.
  • Now, the user can select a scene. In operation S300, a specific scene is transferred from the media server 20 to the media renderer 30 by using out of band protocol.
  • In operation S310, in order to select the scene, the control point 10 calls a GetFocusedRenderingSurface() action that returns information about the scene. Also, the GetFocusedRenderingSurface() action could receive an input argument to move a focus of the rendering surface to another surface, for example, UP, DOWN, RIGHT, or LEFT.
  • In operation S320, the control point 10 calls a Seek() action with the time position information of the selected scene.
  • In operation S330, content from the selected scene is transferred from the media server 20 to the media renderer 30 by using out of band protocol.
  • FIG. 3 is a flowchart illustrating a method of reproducing a plurality of scenes, according to another embodiment of the present invention.
  • In FIG. 3, new UPnP APIs for scene-based seeking are illustrated.
  • In operation S410, the control point 10 calls a Browse() action to browse the native hierarchy of the content directory objects exposed by the content directory service of the media server 30.
  • In operation S420, the control point 10 calls a SetAVTransportURI() action and passes scene metadata as an input argument to the media renderer 30.
  • In operation S430, the control point 10 calls a Play() action to play the content.
  • In operation S440, while the user is watching video content, the control point 10 calls a ShowScene() action to see what scenes are selectable in the video content. At this time, the user can see a number of scenes on a displayer of the media renderer 30.
  • In operation S450, the control point 10 invokes a SetFocusOfScene() action to acquire information about a scene. An input argument of the SetFocusOfScene() action may be a direction, for example, UP, DOWN, RIGHT, or LEFT, to move between the scenes. An output argument of the SetFocusOfScene() action could also be a uniform resource identifier (URI) of an image of the selected scene, by which the control point 10 can know the time position of the selected scene in a video stream.
  • In operation S460, the control point 10 calls a Seek() action along with information about the time position of the selected scene.
  • In operation S465, content from the selected scene is transferred from the media server 20 to the media renderer 30 by using out of band protocol.
  • The present invention may be embodied as computer-readable codes on a computer-readable recording medium. The computer-readable recording medium is any data storage device that can store data which can thereafter be read by a computer system. Examples of the computer-readable recording medium include read-only memories (ROMs), random-access memories (RAMs), CD-ROMs, magnetic tapes, floppy disks, and optical data storage devices.
  • While the present invention has been particularly shown and described with reference to exemplary embodiments thereof using specific terms, the embodiments and terms have been used to explain the present invention and should not be construed as limiting the scope of the present invention defined by the claims. The preferred embodiments should be considered in a descriptive sense only and not for purposes of limitation. Therefore, the scope of the invention is defined not by the detailed description of the invention but by the appended claims, and all differences within the scope will be construed as being included in the present invention.
  • Although a few embodiments have been shown and described, it would be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the claims and their equivalents.

Claims (4)

  1. A method, in a universal plug and play, UPnP, control point (10), of reproducing a plurality of scenes, the method comprising:
    receiving (S100) information about the plurality of scenes from a media server (20);
    transmitting a query for information about the number and positions of supported rendering surfaces to a media renderer (30), the query including the information about the plurality of scenes, and acquiring the information;
    binding a rendering surface to a rendering instance with respect to each scene to be displayed;
    transmitting the rendering instance corresponding to the scene to be displayed to the media render (30); and
    selecting (S120) one of the plurality of scenes.
  2. The method of claim 1, wherein the selecting of the one of the plurality of scenes comprises:
    receiving information about a scene to be selected by a user; and
    moving a focus of a current rendering surface so as to select a rendering surface corresponding to the scene to be selected by the user.
  3. The method of claim 1, wherein the information about the plurality of scenes is scene metadata;
    wherein the method further comprises
    calling an action so as for the media renderer (30) to display all selectable scenes.
  4. A computer-readable recording medium having embodied thereon a computer program for executing a method according to any one of the preceding claims.
EP09702257.8A 2008-01-15 2009-01-15 Content recording method for supporting search based on scenes in a distributed multimedia system Not-in-force EP2237489B1 (en)

Applications Claiming Priority (3)

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US2115408P 2008-01-15 2008-01-15
KR20080081366A KR101480409B1 (en) 2008-01-15 2008-08-20 Method of reproducing contents supporting scene-based seek in distributed multimedia system
PCT/KR2009/000230 WO2009091201A2 (en) 2008-01-15 2009-01-15 Content recording method for supporting search based on scenes in a distributed multimedia system

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EP2237489A2 EP2237489A2 (en) 2010-10-06
EP2237489A4 EP2237489A4 (en) 2012-02-15
EP2237489B1 true EP2237489B1 (en) 2017-11-29

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EP (1) EP2237489B1 (en)
KR (1) KR101480409B1 (en)
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KR20090078720A (en) 2009-07-20
CN101999222A (en) 2011-03-30
EP2237489A2 (en) 2010-10-06
US8837897B2 (en) 2014-09-16
US20090180751A1 (en) 2009-07-16
KR101480409B1 (en) 2015-01-12
CN101999222B (en) 2015-05-13
WO2009091201A3 (en) 2009-10-22
EP2237489A4 (en) 2012-02-15
WO2009091201A2 (en) 2009-07-23

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